Latch.



No. 687,644. 4Patented Nov. 26, |901.

y A .1. M ILLmoN. v

LATCH. 1 .-1. N i rAppumiopv filed Apr. 2o, 1901.) @lo Model.)

UNITEDl STATES PATENT OFFICE.

JACOB MILLIRON, OF NASHVILLE, TENNESSEE, ASSIGNOR OF ONE-HALF TO GROVER SCOLAY, OF DAVIDSON COUNTY, TENNESSEE.

LATCH.

SPECIFICATION farming part of Letters Patent No. 687,644, dated lvovemteaJV e, i901.

Application filed April 20,1901- Serial No. 56,732. (No model.)

-and latches, and is an -improvement therein.

The object of this invention is to provide' a simple and efticient'construction of lock or .latch which can be quickly and easily locked and unlocked and which will dispense with the use of a key for either locking or unlocking.

With this object in view the invention cousists, essentially, in the employment of a spring-actu.; latch-bolt having a pin or stud arranged-.gv ereon and a hook arranged for engagement-With the said pin or stud, whereby the bolt is held against movement. The invention consists also in the peculiar construction of the various parts and in the novel manner of combining or arranging said parts, all of which will be fully described hereinafter, and pointed out in the claims.

In the drawings forming part of this specication, Figure l is a perspective View showing my improved lock or latch applied to a door, the hook being disengaged, so that the bolt can be operated from either side of the door. Fig. 2 is a side elevation showing the hook in engagement and the bolt locked,-the shank of the knob being shown-in section. Fig. 3 is a sectional view on the line 3 3 of Fig. 2. Fig. 4 is a sectional View on the line 4 4 of Fig. 2, and Fig. 5 is a detail plan view of the case. Y

In constructing alock in accordance with my invention I provide a metallic case A,

having base anges or ears A', by means of which the case is attached to the face of the door. This case has a circular aperture A2, through which the knob-spindle passes, said aperture being arranged adjacent to the rear end of the case, and a rectangular-shaped re-v cess .A3 is arranged adjacent to' the aperture A2 and extends nearly vthe entire length of the case. A latch-bolt B is arranged upon the case and-slides freely back and forth thereon, the rear end of said latch-bolt being slotted longitudinally, as shown at B', through which the collar C of the rocker C passes, p the spindle D' of the knob D passing through the collar C', the aperture of said collar being square in cross-section, so that it will turn with the spindle of the knob.

The rocker C is formed with the inwardlyprojecting pins C2, formed upon the rear end of the rocker C, so that by turning the knob in either direction one of the pins will be brought into engagement with oneV of the shoulders B2, formed on the end of the bolt AB,

for the purpose ofv withdrawing the bolt or moving it in a rearward direction. This bolt is normally projected in a locked or forward position by means of a coil-spring E, which is located in the recess A3 and bears against an inwardly-projecting lug B3, arranged upon the inner face of the bolt B and working in the recess A3, as most clearly shown in Fig. 4. A screw F passes through a longitudinal slot B4, producedin the bolt adjacent tothe forward end, said bolt also passing through the case, thereby securely connecting the case and bolt, but permitting a sliding movement of the bolt upon the case. The hook Gis pivoted upon the hook F, said hook turningfreely thereon.

A stud or pin H projects outwardly from the face ofthe boltjust to the rear of the screw F, said. pin being adapted for engagement with the hook G Wheneverit is intended to lock the Abolt against movement, and

when the said hook is moved around so as to engage the stud or pin, as shown in Fig. 2, it is obvious that the bolt cannot be moved either from the outside or inside.

By means of the construction herein shown and described I provide an exceedingly cheap, simple, and efficient construction of latch or lock which vwill dispense with the use of a key, either for locking or unlocking the bolt. The means herein shown and described are those which I have found convenient for accomplishing the objects of my invention; but it Will of course be understood that the details of construction canbe changed or varied somewhat Without departing from the broad principles of my invention.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, isv l. In a lock or latch, the combination with va case having a recess adapted to receive a spiral spring, of a bolt adapted to` slide upon recess in ihe case, the inwardiy-projeoting lug attached to the boit resting in the recess and bearing against the spring,. the outwardL 'projecting pin or stud carried by the boit, tim screw passing through the boit and oase, and the hook pivoted upon the screw audadapted to engage the pin or stud, sub- 2o stantiailyas shown and described.

JACOB MILLIRON.

Witnesses?I HARRY' F. COOPER, 'BAPTLET L. JAMES. 

